html,
body {
    width: 100%;
    height: 100%;
}

#container {
    width: 100%;
    height: 100%;
    position: relative;
}

#header {
    height: 80px;
    width: 100%;
    line-height: 80px;
    font-size: 48px;
    color: #35495E;
    position: absolute;
    top: 0;
    left: 0;
    background-color: white;
    background-image: linear-gradient(transparent 50%, rgba(120, 120, 120, .5) 50%, rgba(120, 120, 120, .5)), linear-gradient(0deg, transparent 50%, rgba(120, 120, 120, .5) 50%, rgba(120, 120, 120, .5));
    text-indent: 10px;
    box-shadow: 0 10px 10px 5px #aaa;
}

#main {
    width: 100%;
    position: absolute;
    top: 80px;
    bottom: 0;
    background-color: #ccc;
    background-image: linear-gradient(-45deg, rgba(255, 255, 255, .2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .2) 50%, rgba(255, 255, 255, .2) 75%, transparent 75%, transparent);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* .card {
    width: 360px;
    height: 480px;
    margin: 120px;
    font-size: 36px;
    text-align: center;
    background-color: #41B883;
    padding-top: 30px;
    box-sizing: border-box;
    border-radius: 10px;
    color: #35495E;
    position: relative;
    cursor: pointer;
}

.card>span {
    display: inline-block;
    width: 100%;
    text-align: center;
    font-size: 16px;
    color: rgba(120, 120, 120);
}

.desc {
    position: absolute;
    bottom: 80px;
    left: 0;
}

.card:hover {
    box-shadow: 0 0 15px 5px rgba(0, 0, 0, .2);
} */